Your 2026 tax position

Section 280E is a federal tax rule that says any business trafficking in a Schedule I or II controlled substance can't take ordinary business deductions.

You can still deduct cost of goods — the actual cost of the product you sold. That's a constitutional floor and it never moved. But everything else — rent, payroll, utilities, marketing, professional fees, depreciation — none of it was deductible under federal law as long as cannabis was Schedule I.

The practical effect: cannabis operators have been paying federal income tax on something close to gross profit, not net income. For a lot of operators, effective federal tax rates ran above 70 percent on book income. That's the rule the April 28 rescheduling ends for state-licensed medical operators.

The legal trigger is the rescheduling taking effect on April 28, 2026. The order is explicit: holders of state medical marijuana licenses are no longer subject to the 280E disallowance as a result of the rule.

For the return you file, the IRS and Treasury have said the relief applies to the full 2026 tax year. Tax year 2026 is the first year you can take operating expense deductions under federal law.

Wrong as a legal date. Understandable as shorthand for the tax year.

The rescheduling order took effect April 28, 2026 — not January 1. But the IRS and Treasury have said the tax relief applies to the full 2026 tax year, which started January 1. So in terms of what it means for your return, the practical answer is the full year counts.

Anyone telling you the law changed January 1 is repeating a misreading. The correct statement is: the law changed April 28, and the IRS is treating the full 2026 tax year as the first year of relief.

Not automatic in the sense that deductions appear on your return without action. You have to claim them.

The legal basis exists now — the rescheduling is the trigger, and it's already done. But deductions don't happen unless you put them on the return. The open question right now is exactly how to position those deductions methodologically, since the IRS hasn't issued final guidance yet on the mechanics. That's a conversation to have with your CPA before the return is filed, not after.

No. These are two separate things.

The DEA registration is your federal operating credential under the new Schedule III framework. The 280E relief is a tax consequence of the rescheduling itself. The order is explicit: the 280E disallowance ends because of the rescheduling, not because you registered. You could have 280E relief without a federal registration. You could have a federal registration without it affecting 280E. They run on separate tracks.

Don't let anyone conflate the two.

Speculative. Worth watching, but don't plan around it.

The order encouraged Treasury to consider giving relief for prior years when an operator was running under a state medical license. That's a suggestion, not a mandate. Treasury and IRS said on April 23 they plan to issue guidance — but as of mid-May 2026, nothing is formalized.

Plan your 2026 return assuming that year is the first year of relief. If retroactive relief eventually comes through for 2022, 2023, or 2024, that's upside. Build toward that position now if your CPA recommends it, but don't file amended returns yet.

Don't file amended returns for prior years yet. The legal basis for a retroactive 280E deduction position doesn't exist until IRS issues guidance on it. Filing now is getting ahead of the law.

Protective refund claims are a different question. A protective claim stakes out your position before a refund opportunity expires under the statute of limitations, without requiring you to fight it today. For tax years 2022, 2023, and 2024 specifically — where refund windows could close before guidance arrives — it's worth a conversation with your CPA about whether a protective claim makes sense.

The line is: wait on amended returns, ask your CPA now about protective claims.

Treasury and IRS announced on April 23, 2026 that guidance is coming. As of mid-May 2026, nothing has been issued.

When it arrives, expect it to cover: confirmation that 280E doesn't apply to state-licensed medical operators for 2026 and forward, the transition period (April 28 treatment), and possibly a position on retroactive relief for prior years.

This page will be updated when guidance drops. Check the update date.

Less pressure to maximize COGS.

Under 280E, operators worked hard to push as many costs as possible into cost of goods sold — because COGS was the only bucket that reduced taxable income. Some of that involved aggressive interpretations of the Section 263A inventory capitalization rules.

With operating expenses now deductible on the federal return, those costs come out either way. The incentive to push everything into COGS evaporates. Expect downward pressure on aggressive Section 263A positions in 2026, both in how operators file and possibly in how the IRS approaches it.

The OMMA excise and sales taxes on medical cannabis don't change. Those are state taxes and the federal rescheduling doesn't touch them.

For Oklahoma income tax: Oklahoma conforms to the federal Internal Revenue Code. The state follows the federal adjusted gross income calculation. So the 280E change that flows through on your federal return generally flows through to your Oklahoma income tax return as well.

Confirm the specifics with your CPA — state conformity questions are fact-specific — but the directional answer is that the federal 280E relief carries through to Oklahoma.

Substantial. Industry projections put effective rates for qualifying medical operators at roughly 20 to 30 percent post-relief, down from the 70-percent-plus range most were paying under 280E.

What you actually land at depends on how expense-intensive your operation is, how COGS is treated, and your entity structure. But the directional answer is a significant improvement in after-tax cash flow starting with the 2026 return.

Low risk for the 2026 return, if the position is grounded in the order itself and taken in good faith.

The federal penalty rules require "substantial authority" or "reasonable basis" for a return position to avoid accuracy-related penalties. The rescheduling order is a final agency action that explicitly ends 280E's application to state-licensed medical operators. A deduction position resting on that order, applied in a reasonable way, is on solid enough ground for the 2026 return.

The risk goes up sharply if you file amended prior-year returns claiming retroactive relief before the IRS says that's allowed. That's the conservative line to hold.

"Trafficking" in Section 280E just means being in the business of buying or selling the substance. Courts set a low bar — it's not about volume or intent, just whether you're in that business. State legality doesn't matter.

Before April 28, 2026: every cannabis business was trafficking in a Schedule I substance under federal law. Didn't matter if you had an OMMA license. Federal law saw one thing.

After April 28, 2026: state-licensed medical operators are trafficking in a Schedule III substance. Section 280E doesn't cover Schedule III. So the deductions open up.

The word trafficking didn't change. The schedule did. That's the whole mechanism.